No problem, let's work through this together. We're starting with 1107 and 5190 and adding them all up.

Step 1: We'll start by adding the digits 7 & 0 in column 1 and get 7.

Step 2: We'll start by adding the digits 0 & 9 in column 2 and get 9.

Step 3: We'll start by adding the digits 1 & 1 in column 3 and get 2.

Step 4: We'll start by adding the digits 1 & 5 in column 4 and get 6.

So, 1107 + 5190 = 6297.

